56K V.92 V.90 External Dial Up Voice USB Fax Modem
56K Fax Modemwith USB interface. Compliant with V.90,and V.42/V.42bis/MNP5 Protocols. Compliant with V.17,V.29 and V.27ter Group3 fax protocols.USB Fax Modemup to 56K data download,48K data upload, and 14.4K fax communication.